Tools & Wizards About Us
isto-orleans.fr screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

isto-orleans.fr

Institut des Sciences de la Terre d'Orléans - ISTO

Page Load Speed

9.5 sec in total

First Response

362 ms

Resources Loaded

8.6 sec

Page Rendered

510 ms

isto-orleans.fr screenshot

About Website

Visit isto-orleans.fr now to see the best up-to-date ISTO Orleans content and also check out these interesting facts you probably never knew about isto-orleans.fr

En bref... L’Institut des Sciences de la Terre d’Orléans est un laboratoire de recherche en sciences de la Terre, étudiant les enveloppes externes de la Terre et les processus d'échanges aux int...

Visit isto-orleans.fr

Key Findings

We analyzed Isto-orleans.fr page load time and found that the first response time was 362 ms and then it took 9.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

isto-orleans.fr performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value35.1 s

0/100

25%

SI (Speed Index)

Value23.5 s

0/100

10%

TBT (Total Blocking Time)

Value1,060 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.146

77/100

15%

TTI (Time to Interactive)

Value28.1 s

0/100

10%

Network Requests Diagram

isto-orleans.fr

362 ms

2499 ms

education-icon-collection.css

189 ms

owl.carousel.css

265 ms

font-awesome.min.css

267 ms

Our browser made a total of 186 requests to load all elements on the main page. We found that 78% of them (146 requests) were addressed to the original Isto-orleans.fr, 9% (16 requests) were made to Youtube.com and 4% (8 requests) were made to Jnn-pa.googleapis.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Isto-orleans.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (21%)

Content Size

7.9 MB

After Optimization

6.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Isto-orleans.fr main page is 7.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 7.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 155.6 kB

  • Original 183.4 kB
  • After minification 170.9 kB
  • After compression 27.8 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 155.6 kB or 85% of the original size.

Image Optimization

-21%

Potential reduce by 1.5 MB

  • Original 7.2 MB
  • After minification 5.7 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, ISTO Orleans needs image optimization as it can save up to 1.5 MB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-3%

Potential reduce by 12.6 kB

  • Original 424.8 kB
  • After minification 424.8 kB
  • After compression 412.2 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 64.8 kB
  • After minification 64.8 kB
  • After compression 64.8 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Isto-orleans.fr has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 107 (64%)

Requests Now

167

After Optimization

60

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 167 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISTO Orleans. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 66 to 1 for JavaScripts and from 43 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

isto-orleans.fr

isto-orleans.fr

362 ms

2499 ms

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189 ms

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Accessibility Review

isto-orleans.fr accessibility score

85

Accessibility Issues

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

isto-orleans.fr best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

isto-orleans.fr SEO score

92

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isto-orleans.fr can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Isto-orleans.fr main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

isto-orleans.fr

Open Graph data is detected on the main page of ISTO Orleans. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: